package com.huangzhao.gulimall.auth.controller;

import cn.hutool.core.map.MapUtil;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.huangzhao.gulimall.auth.feign.MemberFeignService;
import com.huangzhao.gulimall.auth.vo.SocialUser;
import com.huangzhao.gulimall.common.utils.HttpUtils;
import com.huangzhao.gulimall.common.utils.R;
import com.huangzhao.gulimall.common.vo.MemberResponseVo;
import lombok.extern.log4j.Log4j2;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;
import java.util.HashMap;

import static com.huangzhao.gulimall.common.constant.AuthServerConstant.LOGIN_USER;

@Log4j2
@Controller
public class OAuth2Controller {

    @Autowired
    private MemberFeignService memberFeignService;

    @RequestMapping("/oauth2.0/weibo/success")
    public String weiboLogin(@RequestParam("code") String code, HttpSession session) throws Exception {
        HashMap<String, String> map = MapUtil.newHashMap();
        map.put("client_id", "3557654426");
        map.put("client_secret", "8b85212a33c8bbb6b69235c86367e2da");
        map.put("grant_type", "authorization_code");
        map.put("redirect_uri", "http://auth.gulimall.com/oauth2.0/weibo/success");
        map.put("code", code);//用户授权code

        //1、根据用户授权返回的code换取access_token
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", new HashMap<>(), map, new HashMap<>());
        if (response.getStatusLine().getStatusCode() == 200) {
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);
            log.info("weibo access_token", socialUser);
            //1）、当前用户如果是第一次进网站，自动注册进来（为当前社交用户生成一个会员信息，以后这个社交账号就对应指定的会员）
            //登录或者注册这个社交用户
            R oauthLogin = memberFeignService.oauthLogin(socialUser);
            if (oauthLogin.getCode() == 0) {
                MemberResponseVo data = (MemberResponseVo) oauthLogin.getData("data", new TypeReference<MemberResponseVo>() {
                });
                log.info("登录成功信息：{}", data);
                //1、第一次使用session，命令浏览器保存卡号，JSESSIONID这个cookie
                //以后浏览器访问哪个网站就会带上这个网站的cookie
                //TODO 1、默认发的令牌。当前域（解决子域session共享问题）
                //TODO 2、使用JSON的序列化方式来序列化对象到Redis中
                session.setAttribute(LOGIN_USER, data);
                return "redirect:http://gulimall.com";
            } else {
                return "redirect:http://auth.gulimall.com/login.html";
            }
        } else {
            return "redirect:http://auth.gulimall.com/login.html";
        }
    }
}
